The nicotine in vape is just as addictive as the nicotine in tobacco. Nicotine addiction comes with some serious cravings that make it hard to think about anything else. People who are addicted to nicotine may become angry or irritable and can find it hard to pay attention or remember things. That’s called a “deficit in neurocognitive function” and is the result of nicotine withdrawal. The more you use, the more you lose.